Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8215887 | Pipe-handling apparatus and methods | Larry M. Fikowski, Douglas A. Hunter | 2012-07-10 |
| 8042432 | Oilfield tubular torque wrench | Douglas A. Hunter, Martin Thieme | 2011-10-25 |
| 7832974 | Pipe-handling apparatus | Larry M. Fikowski, Douglas A. Hunter | 2010-11-16 |